Surge coupler



FIG. 1 is a top perspective view of a surge coupler showing my new design;

FIG. 2 is bottom perspective view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is front view thereof;

FIG. 5 is a side view thereof;

FIG. 6 is a back view thereof;

FIG. 7 is a side view thereof; and,

FIG. 8 is a bottom view thereof.

The broken lines shown in FIGS. 1, 2, 4 and 8 depict unclaimed environmental subject matter only and form no part of the claimed design. 

CLAIM The ornamental design for a surge coupler, as shown and described. 